<!-- 登录组件-->
<template>
    <div class="login_container">     
        <div class="login_box">
          <!-- 头像区域-->
          <div class="avatar_box">
              <img src="../assets/logo.png" alt="">
          </div>
          <!-- 帐号密码区域 -->
          <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
            <!-- 用户名 -->
            <el-form-item prop="username">
                <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>             
            </el-form-item>
            <!-- 密码 -->
            <el-form-item prop="password">
                <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>             
            </el-form-item>
            <!-- 按钮区域 -->
            <el-form-item class="btns">
                <el-button type="primary" @click="login">登录</el-button>
                <el-button type="info" @click="resetloginForm">重置</el-button>
            </el-form-item>
          </el-form>
        </div>
    </div>

</template>

<script>
export default {
  data(){
    return {
      loginForm: {
          username: 'admin',
          password: '123456',
      },
    loginFormRules: {
        //失去焦点的时候触发
      username: [
          {required: true, message: '请输入登录名称', trigger: 'blur'},
          {min:3, max: 10, message: '长度在3到10个字符', trigger: 'blur'}
      ],
      password: [
          {required: true, message: '请输入登录密码', trigger: 'blur'},
          {min:6, max:15, message: '长度在6到15个字符', trigger: 'blur'}
      ]
    }
    }
  },
  methods: {
      resetLoginForm(){
        this.$refs.loginFormRef.resetFields()
      },
      login(){
        this.$refs.loginFormRef.validate(async valid => {
          if(!valid) return
          const {data: res} = await this.$http.post('login', this.loginForm)
          if(res.meta.status !== 200) return this.$message.error('登录失败!')
          this.$message.success('登录成功')
          window.sessionStorage.setItem('token', res.data.token)    //存入一项，key：token，value：后端返回的token值
          this.$router.push('/home')
        })
      }


  }




}

</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>



































